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### Step 7: Enter Multiple Arm Mode

Once you have set up the computers and are in a measurement routine, the Operation | Enter Multiple Arm Mode menu option becomes selectable from the Arm1 (primary) computer. Select this option.

PC-DMIS displays a check mark to the left of the Operation | Enter Multiple Arm Mode option. PC-DMIS also displays the Active Arms toolbar.

When PC-DMIS enters multiple arm mode, it attempts to establish a link between the multiple computer systems. This link coordinates the activities of all the arms.

Troubleshooting

If PC-DMIS cannot establish the link among the computers after it enters multiple arm mode, an error message appears and informs you of the arm that isn't responding. The following may cause this communication problem:

- PC-DMIS is not running on a computer

- An online measurement routine is active on an Arm2 or higher computer

- The cable connections (or other network connections) between the computers are not functioning

- Settings entered in the Multiple Arm Setup dialog box (Edit | Preferences | Multiple Arm Setup) are incorrect

Once you have a link between the multiple computers, you can calibrate the relationship between the arms.

Exiting the active measurement routine also removes PC-DMIS from multiple arm mode.

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